DXGKDDI_FEATURE_INTERFACE structure (dispmprt.h)
The DXGKDDI_FEATURE_INTERFACE structure contains the display kernel-mode miniport driver's (KMD's) interface that the port driver can call to query for KMD's feature support.
Syntax
typedef struct _DXGKDDI_FEATURE_INTERFACE {
USHORT Size;
USHORT Version;
PVOID Context;
PINTERFACE_REFERENCE InterfaceReference;
PINTERFACE_DEREFERENCE InterfaceDereference;
PDXGKDDI_QUERYFEATURESUPPORT QueryFeatureSupport;
PDXGKDDI_QUERYFEATUREINTERFACE QueryFeatureInterface;
} DXGKDDI_FEATURE_INTERFACE, *PDXGKDDI_FEATURE_INTERFACE;
Members
Size
The size, in bytes, of this structure.
Version
The version number of this interface. Version number constants are defined in Dispmprt.h (for example, DXGK_FEATURE_INTERFACE_VERSION_1).
Context
A pointer to a private context block.
InterfaceReference
Pointer to a KMD-implemented interface reference function.
InterfaceDereference
Pointer to a KMD-implemented interface dereference function.
QueryFeatureSupport
Pointer to a KMD-implemented DxgkDdiQueryFeatureSupport function to query feature support.
QueryFeatureInterface
Pointer to a KMD-implemented DxgkDdiQueryFeatureInterface function to query KMD's interfaces for a feature. The OS only calls these interfaces for enabled features, and always requests the interface for a version of the feature that the driver supports.
Remarks
If the driver implements the DXGKDDI_FEATURE_INTERFACE, it no longer needs to call DxgkCbQueryFeatureSupport to enable a feature in the port driver ahead of time. It can instead query feature support on demand using its DXGKDDI_FEATURE_INTERFACE interface.
For more information, see Querying WDDM feature support and enablement.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 11, version 24H2 (WDDM 3.2) |
| Header | dispmprt.h |